//
//  UIButton+Extension.swift
//  Weibo10
//
//  Created by male on 15/10/14.
//  Copyright © 2015年 itheima. All rights reserved.
//

import UIKit

extension UIButton {
    
    /// `便利`构造函数
    convenience init(imageName: String, backImageName: String) {
        self.init()
        
        setImage(UIImage(named: imageName), forState: UIControlState.Normal)
        setImage(UIImage(named: imageName + "_highlighted"), forState: UIControlState.Highlighted)
        setBackgroundImage(UIImage(named: backImageName), forState: UIControlState.Normal)
        setBackgroundImage(UIImage(named: backImageName + "_highlighted"), forState: UIControlState.Highlighted)
        
        // 会根据背景图片的大小调整尺寸
        sizeToFit()
    }
    
    
    convenience init(imageName: String, titleName: String, color: UIColor){
        
        self.init()
        //设置button
        setBackgroundImage(UIImage(named: imageName), forState: .Normal)
        setTitle(titleName, forState: .Normal)
        setTitleColor(color, forState: .Normal)
        
        sizeToFit()
        
    }
    
    
}
